Electric locomotive for elevated tracks



(No Model.) 2' Sheets-Sheet 1.

0.1-1. ROBERTS. ELECTRIC LOOOMOTIVE FOR ELEVATED TRACKS.

No. 511,862. Patented Jan. 2, 1894. L;

ms NATIONAL umoemrmme COMPANY- WASHINGTON. 0. c.

2 Sheets-Sheet 2.

(No Model.)

G. H. ROBERTS. ELECTRIC LOGOMOTIVE FOR ELEVATED TRACKS. No. 511,862.Patented Jan. 2, 1894.

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mua COMPANY CHARLES H. ROBERTS, OF I'IARTIVELL, OHIO.

ELECTRIC LOCQMOTIVE FOR ELEVATEDTRACKS.

SPECIFICATION forming part of Letters Patent No. 511,862, dated January2, 1894.

Application filed October 29, 1891. Serial'll'o. 410,244. (No model.)

To all whom it may concern:

Be it known that I, CHARLES H. ROBERTS, a citizen ofthe United States,residing at Hartwell, in the county of Hamilton and State of Ohio, haveinvented certain new and useful Improvements in Electric Railways; and Ido declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompany ing drawings, and to the figures of reference marked thereon,which form a part of this specification.

My invention has relation to electric railways for logging purposes, andthe improve- ,ments relate more particularly to the loggingcarriage, aswill be hereinafter fully described and pointed out in the claims.

In the drawings, Figure I is a side elevation of a portion of a trackhaving suspended therefrom, and in engagement therewith, a transportingcarriage. Fig. II is an end elevation on an enlarged scale of the same,showing the girder and track-rails in cross-section. Fig. III is atransverse sectional detail view through one set of the sprocketwheels,one of the suspension-wheels, a portion of the supporting-rod or hangerbeing shown in full lines.

Referring by reference numerals to the accompanying drawings, 1designates one of the transverse supporting cross-beams or girders ofthe trestlework from which the rollingstock is suspended and supported,and 2 is a girder suspended from the cross-beams, 1, in any suitable ordesired way but preferably by depending rods or hangers, 6, in any ofthe well-known ways, as shown in Fig. I, where the said hangers, 6, areillustrated as secured by shoulders or enlargements at their lower endsand by nuts, 41, at their upper ends, Upon the girder, 2, the two uppertrack-rails 3, 4 are secured in any of the well-known ways, and to thisgirder is also secured in the usual manner the lower or guiding rail 5.Each of these rails is of the ordinary T-rail form. The suspending-rods6 are sectional rods formed of sections 7 and 8, they being connected attheir meeting points by tightening-nuts 9. The hanger-rods 6 arethreaded at their upper ends and pass upwardly through the longitudinalbeams of the trucks 10, the projecting upper ends of said hanger-rodsbeing threaded, encircled by spiral or coiled springs 11, and passedthrough tie-rods 12, and afterward secured in place by threaded nuts 13.Brace-rods 14 and 15 are bolted at their extremities to the upper andlower truck-frames to give additional strength to the transportingcarriage. Electric impelling wires 27, 28

are suspended beneath the truck beam and the spring-controlled trolley25 engages either one of these wires, according to the direction inwhich it is desired to have the carriage move along the elevated track.The dynamo may be of any ordinary pattern that can be conveniently usedand is preferably located beneath the car-trpck and within convenientproximity to the drivers cab. A spring-actuated trolley 25 connects orcontacts with the lower or guard-rail 5. The electric propelling wires27, 28, are supported in any of the usual ways beneath the suspendedbeam of the structure, and preferably intermediate of the front and rearwheels of the carriage, when fore and aft wheels are used, which,however, is not an essential feature of the invention. The trucks areprovided each with three sprocket-wheels 29, 30 and 31 over which thechains 31 which engage with the sprocketwheels 32, 33, on the lowertraveling or car wheels 34, 35, run. The sprocket-wheels 30 and 31 areof course keyed to the shafts or axles of the upper traveling ortruck-wheels, 42, and 43. chain 36 engages the sprocket of thedrivingwheels, and passes once around the drivewheel 37 of thedynamo-machine. Adrivers car40 is suspended at the rear of the carriage.hen it is desired to carry logs from the felling-forests to the marketor shipping point the front Wheel is dispensed with and the frame aloneis employed from which to suspend the log, so that the latter may becarried to theshipping point.

The drivers car is suspended by rods from the carriage in any convenientand practical manner. This road is designed to be projected into aforest where timber is to be or has been felled for the purpose oftransportation of the same to a shipping-point, and in a country whererailroads are not financially practicable or easy of construction.

(See Fig. III.) A belt or endless Although I prefer to use a dynamo topropel the traveling wheels of the truck by the sprocket-wheels andchains as described, yet it is manifest that any other suitable motormay be employed and connected by any suitable means with the travelingwheels to impart rotation thereto.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent of the United States, is-

1. The combination With an elevated track beam supported by hanger-rodsand trestlework, and electric imp'elling-wires arranged beneath thetrackbeam, of upper trucks mounted upon the upper track-rails andprovided with sprocket wheels and the lower flanged-wheel mounted on ashaft provided with sprocket-wheels,chains connecting the 7 upperandlower sprocket-wheels,an actuating dynamo-machine connected therewith,and a spring controlled trolley connected to the dynamo-case andengaging the lower track-rail of the structure, substantially asspecified.

2. The combination with the supported track-beam provided with two uppertrackrails and one lower track-rail, of the springactuated trucksmounted on said upper trackrails and having tension sprocket-wheelsconnected by sprocket-chains, of the lower larger sprocket wheelsconnected by an endless chain in engagement with a dynamo machinesupported in the carrying frame, substantially as specified.

3. The combination with the suspended track of the flanged travelingwheels the connected sprocket-wheels, the sprocket chains,

and the depending hanger rods, the lower sprocket-wheels, and theflanged-wheel engaging the lower track-rail, substantially as specified;

4E. The combination with the track-beam provided with upperand lowertrack rails, of a suspended truck having upper and lower flanged wheels,sprocket-wheels on the shafts of said upper and lower flanged wheels,chains connecting the relative sprocket wheels, and

a suspended drivers car supported from the main carriage, substantiallyas specified.

5. The combination, with an elevated trackbeam provided with upper andlower trackrails, of upper trucks whose wheels engagethe uppertrack-rails, and a lower truck having wheels engaging the lowertrack-rails,

hanger rods attached at their lower ends to the lower truck and passingup through the upper trucks, and springs interposed between t the uppertrucks and the upper ends of the hanger-rods, substantially as setforth.

'6. The combination, of a suspended trackbeam provided with upper andlower trackrails, with upper trucks whose wheels engage the uppertrack-rails, and lower trucks suspended from the upper trucks bylongitudinally, yielding hanger-rods, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES H. ROBERTS.

Witnesses:

HENRY J. ENNIs, GEo. McGovERN.

